Negatively charged strangelet search using the E864 spectrometer at the AGS
Gene Van Buren; the E864 Collaboration
Журнал:
Journal of Physics G: Nuclear and Particle Physics
Дата:
1999-02-01
Аннотация:
We provide a status report on the progress of searching for negatively charged strangelets using the E864 spectrometer at the AGS. About 200 million recorded events representing approximately 14 billion 10% central interactions of Au + Pt at 11.5 GeV/c taken during the 1996-1997 run of the experiment are used in the analysis. No strangelet candidates are seen for charges Z = -1 and Z = -2, corresponding to a 90% confidence level for upper limits of strangelet production of ∼1 × 10<sup>−8</sup> and ∼4 × 10<sup>−9</sup> per central collision, respectively. The limits are nearly uniform over a wide range of masses and are valid only for strangelets which are stable or have lifetimes greater than ∼50 ns.
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